crow cigarette cleaning A Swedish startup called Corvid has found a clever way to fight litter using wild crows. According to The Guardian, the company developed a device that rewards crows with food when CROWS Clean Up City Streets

CROWS Clean Up City Streets by Collecting Cigarette Butts Recycling Council of Alberta Crows trained to clean up cigarette butts on Swedish streets National In Sweden, an innovative project has demonstrated how intelligent birds can help tackle urban litter. Researchers and a startup called Corvid Cleaning trained wild crows to collect cigarette butts from the streets A pilot program in Sweden trained wild crows to drop cigarette butts into a machine in exchange for food. Run by startup Corvid Cleaning, it aimed to cut litter clean up costs by

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